This is one justified Linus rant! My personal history includes data loss twice because of defective RAM, and many more RAMs discarded after the now obligatory overnight run of MemTest86+ (these were all secondhand RAMs - I would never buy a new one without a refund guarantee). My very first "PC" still had the ECC capability and I used it. My own now very dated rant on the subject: http://wandel.ca/homepage/memory_rant.html